'x' men can complete a work in 60 days. If there had been 20 more men, the work would have been completed in 30 days. Find the value of 'x'.
According to the question, the total amount of work is 60x units. Therefore: 60x=(x+20)×30 60x=30x+600 30x=600 x = 600/30 x = 20
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